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383V316 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

383V316: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flange_diameter: 0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN, hardness_rating: 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL, style_designator: PLAIN FLANGED, surface_treatment: PASSIVATE OVERALL, under_flange_height: 0.405 INCHES MINIMUM AND 0.407 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-005-7405, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
383V316
NSN: 4820-00-005-7405
FSC: 4820 — Valves, Nonpowered
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flange_diameter0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
hardness_rating25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
style_designatorPLAIN FLANGED
surface_treatmentPASSIVATE OVERALL
under_flange_height0.405 INCHES MINIMUM AND 0.407 INCHES MAXIMUM IN
body_inside_diameter0.125 INCHES NOMINAL IN
body_outside_diameter0.384 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.153 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
NSN4820-00-005-7405
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 383V316 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLANGE SEAT TO DISK END HEIGHT: 0.153 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.384 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 0.125 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
UNDER FLANGE HEIGHT: 0.405 INCHES MINIMUM AND 0.407 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.153 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
FLANGE DIAMETER0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.384 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER0.125 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
UNDER FLANGE HEIGHT0.405 INCHES MINIMUM AND 0.407 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
SEATING SURFACE SHAPEFLAT
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 383V316?
383V316 is a SEAT,VALVE.
What is the NSN for 383V316?
383V316 is cataloged in the U.S. Government catalog under NSN 4820-00-005-7405. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.